code: def test_log_is_property():
      """Test _MockEstimatorMixin.log can't be overwritten."""
      mixin = _MockEstimatorMixin()
      with pytest.raises(AttributeError) as excinfo:
          mixin.log = 1
          assert "can't set attribute" in str(excinfo.value)
  
file_path: sktime/sktime/utils/estimators/tests/test_base.py
imports: import pytest
  from pandas.testing import assert_series_equal
  from sktime.classification.base import BaseClassifier
  from sktime.clustering.base import BaseClusterer
  from sktime.datasets import load_airline
  from sktime.forecasting.base import BaseForecaster
  from sktime.forecasting.naive import NaiveForecaster
  from sktime.transformations.base import BaseTransformer
  from sktime.transformations.series.boxcox import BoxCoxTransformer
  from sktime.utils.estimators import make_mock_estimator
  from sktime.utils.estimators._base import _method_logger, _MockEstimatorMixin
label_desc: Use image node_id 3 for calling a global function with example usage: test_log_is_property() without return types